by Debra Kail (Author)

This is a book of 80 number puzzles, including Sudoku, Crazy 8's, and Calcudoku puzzles. Puzzles are helpful in keeping the mind sharp and alert, especially the aging population. Puzzles are also just plain fun and entertaining. Sudoku puzzles are very popular with all age groups. Logic Teasers is dedicated to publishing a variety of challenging puzzles for adults. Enjoy